CVE-2021-39353
8.8 · HIGHOverview
CVE-2021-39353 is a high-severity vulnerability affecting easyregistrationforms easy_registration_forms. It was published on November 19, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
The Easy Registration Forms WordPress plugin is vulnerable to Cross-Site Request Forgery due to missing nonce validation via the ajax_add_form function found in the ~/includes/class-form.php file which made it possible for attackers to inject arbitrary web scripts in versions up to, and including 2.1.1.
Remediation
Check the references section for vendor advisories and patches from easyregistrationforms. Update easy_registration_forms to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| easyregistrationforms | easy_registration_forms | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2021-39353?
CVE-2021-39353 is a high-severity vulnerability affecting easyregistrationforms easy_registration_forms. It was published on November 19, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-39353?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2021-39353?
Check the references section for vendor advisories and patches from easyregistrationforms. Update easy_registration_forms to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-39353?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-39353 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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